Business Loan Calculator Online
Estimate business loan payments, fees and the true cost of borrowing, calculated locally in your browser. Estimates only — not financial advice.
The Business Loan Calculator runs entirely in your browser. The loan amount, rate, term and fees you enter never leave your device and nothing is uploaded to ArrayKit. Estimates only — not financial advice.
Open the Loan Calculator
About Business Loan Calculator
Business Loan Calculator estimates your monthly payment, total interest and true borrowing cost for a business loan, including any upfront origination or processing fees a lender charges. Enter the loan amount, annual rate, term and an optional fee percentage, and it amortizes the payment, then folds the fee into an effective APR — the annualized rate that reflects what you actually receive against what you repay over the term. It is useful when comparing offers from a bank, an online lender or an SBA-backed loan, since a lower headline rate with a large fee can cost more than a higher rate with none. Built for small business owners, founders and finance teams sizing up financing options. Everything runs locally in your browser — no loan figures are uploaded. Estimates only, not financial advice; confirm exact terms with your lender.
Features
- Amortized monthly payment from loan amount, rate and term
- Optional upfront fee percentage (origination, processing, SBA guarantee fee)
- Effective APR that folds fees into the true annualized cost
- Total interest and total cost of the loan over its full term
- Toggle the term between years and months
- Copy a plain-text summary of every result for a proposal or spreadsheet
- Clear error banner for an invalid amount, rate, term or fee
- Runs entirely in your browser — no loan details are uploaded
How to use the Business Loan Calculator
- Enter the loan amount you are borrowing
- Enter the annual interest rate the lender quoted
- Set the term in years or months
- Add any upfront fee percentage, if the lender charges one
- Read the monthly payment, total cost and effective APR
Example
Input
$100k, 8%, 60 mo
Output
Monthly: $2,027.64
Common errors & troubleshooting
- The effective APR looks higher than the quoted interest rate. — That is expected once an upfront fee is included — the effective APR spreads the fee across the term, so it always sits at or above the nominal rate whenever a fee is charged.
- The rate was typed as 0.08 instead of 8. — Enter the annual rate as a percentage, e.g. 8 for 8%, not the decimal form — 0.08 will be read as 0.08% and understate the payment.
- The term was entered in months while the term-unit toggle was set to Years. — Switch the toggle to Months, or convert the figure to years first — a 60-month loan is 5 years, not 60 years.
- The fee field was left blank and the effective APR matches the nominal rate exactly. — That's correct — with no upfront fee entered, the effective APR equals the nominal annual rate since nothing reduces the funds you actually receive.
Frequently asked questions
- What does the Business Loan Calculator include in the effective APR?
- It folds any upfront origination or processing fee into the amortized payment stream, then solves for the annualized discount rate that equates the payments to the net amount you actually receive (loan amount minus fees). That is the effective APR.
- How is the monthly payment on a business loan calculated?
- The Business Loan Calculator uses the standard amortization formula: the monthly rate and term are applied to the full loan amount so every payment is equal, covering interest first and principal after.
- Does the Business Loan Calculator account for SBA guarantee fees?
- Yes — enter an SBA guarantee fee, origination fee or any other upfront cost as a percentage of the loan amount in the fees field, and it is included in total cost and effective APR.
- Are the results from the Business Loan Calculator legally binding loan terms?
- No. The Business Loan Calculator produces estimates only, not financial advice. Actual underwriting, fees and rates are set by your lender and can differ from what you enter here.
- Does the Business Loan Calculator upload my loan amount or rate?
- No. The Business Loan Calculator runs entirely in your browser. The amount, rate, term and fees you enter never leave your device and are not sent to ArrayKit.
- Can I compare two business loan offers with different fees using this calculator?
- Yes — run each offer through the calculator separately and compare the effective APR figures side by side; that number accounts for both the rate and any fees, so it is the fairest way to compare offers.
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